Apparatus for forming paper strips into continuous label forming bands for yarn and the like



April 10, 1951 s. E. TRIBBEY APPARATUS PoR FURMING PAPER STRIPS INT0CONTINUOUS LABEL FURMTNG BANDS PoR YARN AND THE LIRE 11 Sheets-Sheet 1Filed March 29, 1949 prll l0, 1951 s. E. TRIBBEY f APPARATUS PoR FORMINGPAPER STRIPS INTO CONTINUOUS LABEL FORMING BANDS PoR YARN AND THE LIKE11 Sheets-Sheet 2 Filed March 29, 1949 Apnl l0, 1951 s. E. TRIBBEYAPPARATUS PoR PORMING PAPER STRIPS INT0 .CONTINUOUS LABEL FORMING BANDSPoR YARN AND THE LIKE 11 Sheets-Sheet 3 Filed March 29, 1949 plll 10,1951 s. E. TRIBBEY APPARATUS POR EORNING PAPER sTRIPs INTO CONTINUOUSLABEL FORMING BANDS POR YARN AND THE LIKE Filed March 29, 1949 11Sheets-Sheet 4 wml April 10, 1951 s. E. TRIBBEY 2,548,451

APPARATUS FOR FORMING PAPER STRIPS INTO CONTINUOUS LABEL FORMING BANDSFOR YARN AND THE LIKE Filed March 29, 1949 11 Sheets-Sheet 5 s. E.TRlBBl-:Y 2,548,451 APPARATUS FOR F PAPER sTRTPs INT0 co EL FoRMTNGBANDS D THE LIKE ORMING NUOUS LAB R YARN AN 'April l0, 1951 Filed March29, 1949 1l Sheets-Sheet 6 April 10, 1951 s. E. TRIBBEY APPARATUS FORPORNTNG PAPER STRIPS INTO CONTINUOUS LABEL FORNING BANDS FOR YARN ANDTHE LIKE 11 Sheets-Sheet 'I Filed March 29, 1949 11 Sheets-Sheet 8 Aprll10, 1951 s. E. TRIBBEY APPARATUS FOR FORMING PAPER ST INT0 CONTINUOUSLABEL FOEMIN BANDS EoR YARN AND THE LIKE Filed March 29, 1949 E Ellllllll/IL prll 10, 195i s. E TRlBBEY 2,548,45

APPARATUS FOR FORMING PAPER STRIPS INTO CONTINUOUS LABEL FORMING BANDSFOR YARN AND THE LIKE ll Sheets-Sheet 9 Filed MaI Gh 29, 1949 Apri m,1951 s E TmBB'EY 2,545,451

APPARATUS FOR FORMING PAPER STRIPS INTO CONTINUOUS LABEL FORMING BANDSFOR YARN AND THE LIKE Filed March 29, 1949 l1 Sheets-Sheet 10 5y MKQMJ@April l0, 1951 s, E, TRlBBEY 2,548,451

APPARATUS FOR FORMING PAPER STRIPS INTO CONTINUOUS LABEL FORMING v BANDSFR YARN AND THE LIKE Filed MalQhZQ, 1949 11 SheepS-Sheet 11 QZO PatentedApr. 10, 1951 APPARATUS FOR FORMIN'G'PAPER STRIPS INTO CONTINUOUS LABELFORMTNG BANDS FOR YARN AND THE LIKE Stanley E. Tribbey, Chicago, Ill.,assigner to Caron Spinning Company, Rochelle, Ill., a corporation ofIllinois Application March 2.9, 1949, Serial No. 84,186A

claims. (c1. 93-81') 1 This invention relates to a machine for makingpaper bands such, for example, as those used for banding yarn skeins;and the primary object is to provide a machine of that character whichis fully automatic and will produce finished bands at a rapid rate.

Another object is to provide a band-making machine which will not onlymake the hands but will, at the same time, print thereon the lot numbersand colors or other identifying information pertinent to each lot ororder.

The machine herein described and illustrated in the accompanyingdrawings automatically feeds strips of paper, one at a time, to arotating mandrel to which each strip, inv turn, is adhered by suction,whereby it is 'caused to wind around the mandrel to form a band ofprescribed diameter. During each rotation of the mandrel, with anattached paper strip, glue or other adhesive is applied to the leadingmarginal surface of the strip; and thereafter, at the end of a completerevolution of the mandrel, the trailing marginal surface of the paperstrip is pressed against the adhesive-coated leading marginal surface,thus securing together the two ends of the band. Immediately followingthe foregoing band-winding and glueing operation, the finished band isautomatically ejected from the mandrel; and another paper strip isthereafter fed to the mandrel. Concurrently with each band-formingoperation, the aforementioned printing operation is performed on theband, the mandrel itself serving as a' platen. Y

The novel features of this invention can best be explained withreference to the drawings which accompany this specification, wherein:

v Fig. 1 is a `view of=the-machine in side elevan tion;

Fig. 2 is an enlargement of a portion-of Fig. 1, with certain partsshown inl section;

Fig. 3 is a fragmentary plan view;

Fig. 4 is a section taken at line 4 4 of Fig. 2;

Fig. 5 is a-section taken at line 5-5 of Fig. 2:

Fig. 6 is a detail sectional View taken at line E-- of Fig. 4, showingthe major components of the machine in thepositions which they7 occupyimmediately prior to the commencement of a band-winding operation;

Fig. '7 .is an enlarged section taken at line 'i-l of Fig. 4, de iotingthe commencement of a band-winding operation;

Fig. 8 is a section taken at line 8 8 of Fig. 1. illustrating anintermediate stage of the handn Winding operation, wherein adhesive isbeing ap- E 2 plied to the marginalsurface adjacent the leading edge ofthe paper strip;

Fig. 9 is an enlarged detail of a portion of Fig. 8, illustrating moreclearly the application of adhesive to the paper band;

Fig. 10 is a plan view of the adhesive-applying arm and roller, taken atline llilll of Fig. 8;

Fig. 11 is a section at line H-ll of Fig. 8, showing thevacuum-actuatedlatch mechanism which functions to prevent upward movement of theadhesive applicator in the absence of astrip of paper on the-windingmandrel;

Fig. 12 is an enlarged detail of a portion of camshaft, showing theoutlines and relative an-v gular relations of the several cams;

Fig. 1'7 is a section taken'at line ll-l'l of Fig.

4, showing the chain drives for both the winding mandrel and theprinting roller, and the mechanism for operating the valve by means ofwhichl compressed air is admitted, at'the end of each cycle ofoperation, to the pressure cylinder which serves to actuate the bandejector;

Fig. 18 is a diagrammatic showing of theY mandrel with a completed bandthereon ready for ejection;

Fig. 19 is an enlarged section taken at line Iii-i9 of Fig. 17,illustrating the band-ejector mechanism; and f Fig. 20 is an elevationalview of the winding' mandrel and ejector mechanism, together with' ashowing of the vacuum pump and pipe connections; v 1 1 Referring firstto Fig. 1, the subject bandforming machine is identified as a whole hyref# erence numeral I8; and this is operativelyassociated with aDavidson suction-type feeder which is identied in its entirety byreference numeral l2.V Inasrnuch as the feeder is a well-Y knowncommercialdevice used extensively in printing establishments, there isno occasion to*v describe the same beyond what is necessary to l clarifyits operative relationship to the machine l0.

a portion of Fig.'

The feeder I2 includes a platform I3 on which is supported a stack I4 ofpaper strips 35 from which the bands are formed; and said platform isautomatically moved upwardly by a counterweight l5 as the strips ofpaper are withdrawn from the top of the stack. A suction pick-up devicedesignated as a whole by reference numeral I 6 picks up the strips ofpaper, one at a time, from the top of stack I4 and feeds them into thebite of feed rollers Il and I8 by means of which the sheets aretransferred to a belt conveyor and thence to the band-forming machine.It is to be understood that the bandforming machine I0 and feeder I2 aremechanically coordinated so that the sheets of paper are passed to theconveyor at the properly timed intervals.

The machine I0 comprises a framework 22 made up of suitablestructuralsteel shapes and plates and designed to provide supports for the variousmechanical components.

The focal center of the machine is a continuously rotating mandrel 23,about which the paper strips 35 are wound, one at a time, to form thepaper bands; and immediately associated with said mandrel are: amechanism 24 for applying adhesive to the leading margin of each paperstrip, and printing mechanism 25 which automatically imprints a lotnumber and color or other desirable information on each band. Alsoassociated with the mandrel 23 is means for automatically ejecting thecompleted bands therefrom.

The conveyor 2D comprises a suitable frame 2B which is pivotallyconnected at 28 to the feeder I2 and includes rollers 39, 3l and 32around which passes a multiple strand belt 33. Said belt is continuouslydriven in the direction indicated by an arrow on Fig. 1 and it serves toconvey the strips of paper from the feeder to a spoutlike guide elementhaving convergent top and bottom walls, as clearly shown in Figs. 2, 6and 8. A pair of elongate spring fingers 31 overlie and extendapproximately parallel to the belt 33 and are anchored at points remotefrom guide ele-l ment 35; and the free ends of said spring fingers areeffective to bear down lightly on the paper strips as they enter theguide element 36 and thus serve to hold the paper flat against the beltat the discharge end thereof so that it will be positively propelledthrough the guide element 36 at the proper instant.

At the discharge end of the guide element 36 there is located astationary stop plate 38, the lower end portion of which is sopositioned that it normally serves to obstruct discharge of the paperstrips-the object being to time the discharge of each strip so that itwill engage the winding mandrel at the pro-per instant, The stop plate33 is carried by a support 39 which, in turn, is attached to the frameof the machine; and said plate is adjustable vertically by means of anadjusting screw 49. The adjustments thus capable of being effected makesit possible easily todelay or advance release of the paper strips fromthe guide element 35, as will presently be apparent.

The frame 26 of conveyor 2!! is rigidly connected to a pair of parallelarms 42, each of which is aiiixed at one end to an elbow fitting 43,individually. Said fittings '43 are interconnected by a crossbar 44,Figs. 4 and 5, which carries a T-tting 45, to which is connected, Fig.6,

a link 4G, the lower end of which is threaded to a clevis 48 securedagainst free rotation by a 4 knurled lock nut 49. The clevis 4B isbifurcated to receive a roller 50 which is rotatable on a pin 5I towhich is pivotally connected the upper end of a link 52 fulcrumed at 53.The two links 46 and 52, conjointly, form a toggle, with the roller 53located at the knee thereof.

As most clearly shown in Fig. 6, a slide 56 mounted for lengthwisehorizontal reciprocation bears at one end against the roller 5I! and isprovided at its other end with a roller 51 which engages the peripheryof a cam 58 carried by and rotatable with a camshaft 59. As will beapparent from inspection 0f Fig. 6, the action of cam 58 through slide56 on roller 50 is such as to cause the toggle, comprising links 46 and52, to alternate between the two limiting postures illustratedrespectively in Figs. 2 and 6. The arms 42 are thus alternately raisedand lowered, thereby lifting and lowering the free end of conveyor 20and the guide element 36 which is supported by the conveyor frame. InFig. 6 the arms 42 are in elevated posture, and the discharge end ofguide element 35 is consequently obstructed by the stop plate 38.Rotation of cam 58 to the angular posture in which it is shown in Fig. 2results in a withdrawal of lateral support from the knee of the toggle,thereby enabling the toggle to give way and permit the arms 42 todescend under gravity sufficiently to effect displacement of thedischarge end of guide element 36 from the position in which it is shownin Fig. 6, relative to stop plate 38, to the alternate open position inwhich it is shown in Fig. 2. The timing of the feed mechanism is suchthat there is in each instance a strip of paper 35 within the guideelement 36 ready to be discharged immediately prior to each alternateopening of the discharge end thereof, provided the stack I4 has notbecome exhausted, and further provided the feed mechanism and conveyorare operating properly. The reason for feeding the strips of paper intothe guide element 36 at a rate of one strip per each alternate openinginstead of one strip per opening will be explained later.

A rubber pressure roller 50 journaled in the lower ends of two parallelsupporting arms EI, adjustably connected to a bracket 62, bridged acrossthe arms 42 and carried thereby, is disposed adjacent the periphery ofmandrel 23 and.

movable with the arms 42 toward and away from said mandrel. Thealternate positions of said roller 60 are depicted in Figs. 6 and 7respectively; and as will be self-evident from the latter the functionof the roller is to press the strip of paper 35 against the peripheralsurface of the mandrel.

The mandrel 23 is provided with two closely spaced rows of peripheralopenings {i4-,see Figs. 13 and l-extending axiswise of the mandrel. andsaid openings communicate through the interior of the mandrel and itssupporting spindle with a vacuum pump, through a valve which functionsautomatically to apply and release the vacuum at the appropriateintervals.

Assuming the presence of a strip of paper within the guide element 36,it will be apparent that as the arms 42 are lowered from the posture ofFig. 6, the roller 6I! and the guide element 36 will descend to assumethe positions in which they are shown in Figs. 2 and 7. The paper strip35 is thus freed from the obstruction or stop plate 38 and isimmediately propelled by the conveyor belt against the roller 60, therotation of which Ycauses the leading edge of the strip to be deecteddownwardly into the bite between said roller 60 and the peripheralsurface of the mandrel. The timing is such that the peripheral openings64 arrive at a position coinciding with the leading margin of the paperstrip, as clearly shown in Fig. 7, and the vacuum is thereupon appliedso that the said leading margin of the strip is held firmly against themandrel, while the latter continues to rotate in the counterclockwisedirection. The vacuum is maintained so as to retain the paper strip onthe mandrel throughout a complete revolution, after which the vacuum isreleased for an instant while the band is being ejected from themandrel.

When the paper strip 35 has partially encircled the mandrelsee Fig. 9--aliquid adhesive is applied to the external leading marginal surfacethereof by the adhesive-applying mechanism 24, and the adhesive soapplied, although quick setting, remains sufficiently agglutinant sothat When the trailing edge of the strip is pressed by the roller 60against the adhesive-coated marginal surface the two ends of the bandare firmly joined. Thereupon the roller 6l] is lifted out of contactwith the completed band and an ejector mechanism, to be described later,kicks the band off the mandrel into a receptacle, not shown, providedfor the purpose.

ItY will readily be understood from a consideration of Fig. 15, whichshows the conditions obtaining immediately prior to the completion of aband, that it is not practicable to feed another paper strip to themandrel concurrently with the completion of each band because by thetime a completed band has been ejected the openings 84 will have passedbeyond the point of possible registration with the leading margin of thenext paper strip; and it would involve much complication to provideadditional rows of vacuum openings, angularly displaced from openings84, for the reason that no adequate suction could be created at onegroup of openings while the other group remained uncovered unless arelatively intricate valve arrangement were provided for controlling thevacuum to each group individually. And even if the necessary additionalvalves and valve-actuating mechanism were not enough to renderunfeasible the provision of a second group of openings closely followingthe existing group, there are still other factors which contributeadditionally to the undesirability of so doing. It is for that reasonthat the paper feed mechanism is timed to feed one strip of paper to theconveyor for each two revolutions of the mandrel. By the time rthe groupof openings 64 has completed another revolution, following ejection ofAa completed band, and has again arrived at the angular positionillustrated in Fig. '7, a succeeding vstrip of paper 35 is delivered tothe bite between roller 60 and mandrel 23, and the formation of anotherband is thus initiated.

The band-winding mandrel The construction of the mandrel 23 and itsspindle 66 together with the spindle bearings and the vacuum-controlvalve and valve-actuating mechanism is most fully illustrated in Fig.13; and the vband-ejecting mechanism is also shown in part in, thatfigure and in part in Fig. 19. It will be observed that the spindle 66is mounted for rotation in ball-bearings 61 which, in turn, are mountedin a bearing block B8 secured to a plate |81 which is supported by theframe 22. A stub shaft 69 is pressed into one end of spindle 66 andcarries two chain sprockets 6 10 and 1I, the latter of which is drivenby a chain 12, Fig. 4, from a sprocket 13 on the camshaft 59. Thesprocket 10 serves as a driving sprocket for the printing mechanism,which is to be described later.

The spindle 66 has an axial bore 14 connected with the group of openings64 and in communication through openings 15 with ports 16 and 18 in thebearing block 68. Annular` seals 19 are provided at the two ends ofbearing block 68 to render the interior thereof vacuum tight. A vacuumcontrol valve 89 is attached to the bearing block 68 and has ports 8iand 82 in registra/- tion with the ports 16 and 18 respectively. A valveslide 84 is mounted within the body of valve B!) and is reciprocablelengthwise. Said slide has two ports 85 and 86, the former of whichregisters with the port 8l when the slide is in that one of its twolimiting positions in which it is shown, while the latter registers withport 82 when the slide is in its alternate limiting position. Thethreaded opening 81 is connected to a pipe 88 which, as shown in Fig.20, connects with a vacuum pump 39. The slide 84 is biased by a spring98 toward the position in which it is shown in Fig. 13, wherein theports 8l and 85 are in registration. It will be evident that vacuum isapplied to the bore 14 of spindle 66 and thus to Athe openings 64 whenthe valve slide 84 is in its normal position as per Fig. 13. To the endof valve slide 84 remote from spring 90 there is connected the plungerVof a solenoid 92 which when energized moves the slide to its alternateposition wherein the port 86 registers with port 82 and the port 85 isout of registration with port 8l. The threaded opening 93 maycommunicate directly with the ambient atmosphere or, if it is desired tosuppress the noise of recurrently inrushing air said opening may beconnected to a pipe extending to the exterior of the building or to anoise-suppressing muiiier.

The winding of solenoid 92 is connected in circuit with a normally openswitch 94-see Fig. 4- which is adapted to be closed momentarily by a cam95 on camshaft 59, once per revolution of said camshaft. Since themandrel 23 and its spindle 66 are driven from camshaft 59 through chain12 at twice the speed of the camshaft, this is equivalent to saying thatsolenoid 92 is energized momentarily once every other revolution ofmandrel 23. The energization occurs upon completion of each band.

The mandrel 23 preferably is removable from spindle 66, as will be clearfrom inspection of Fig. 23. It is held on the spindle by a knurled nut63 and located rotationally by means of a key. Mandrels of variousdiameters may be provided and interchanged to condition the machine forthe making of bands of diverse sizes. However, if mandrels of differentdiameters are interchanged it obviously is necessary to provide forcorresponding radial adjustments of the ejector fingers 98. This can beaccomplished by moving the ejector ngers outwardly or inwardly along theface of the sleeve |00 or by providing a variety of sleeves with ejectorfingers located at variant radial distances from the axis of rotation.

The band ejector The mechanism for ejecting the finished bands from themandrel 23 comprises three ejector fingers 98 equally spaced about themandrel and arranged to slide in grooves 99 milled in the peripherythereof and extending axiswise of the one end to a sleeve |00 which isslidable on the' spindle 65 and rotatable therewith. In Fig. 13 saidsleeve and iingers do not overlap the mandrel sufficiently to interferewith the band-winding operation. The sleeve |55 has an integralannularly grooved collar |871 which is engaged by a forked shifter arm|82 secured to and movable with a piston rod |03, Fig. 19, extendinginto a pressure cylinder |54 and connected therein to a piston |55.Compressed air is admissible to the cylinder chamber 151 through a port,not shown, passing through the cylinder head |55, and is alternatelyadmissible to the cylinder chamber |58 through a port H5. Normally thechamber |51 is under air pressure, as a result of which the fingers 98are retracted as per Fig. 13. But at the instant when a iinished band isto be ejected from the mandrel the pressure is released from chamber 51and compressed air admitted to chamber |538 through port H5. The fingers98 are consequently moved abruptly to eject the nished band; and the aircontrol valve acts immediately thereafter to restore pressure to chamber|51 and release the pressure from chamber |88. The iingers accordinglymove forward and back in quick succession. Control of the inflow anddischarge of air to and from cylinder chambers |51 and |58 is eiected bya valve H2 which is best shown in Fig. 1'?, but also visible in Fig. 4.Said valve includes a` plunger-type valve stem i3, Fig. 17, arranged foractuation by a walking beam ||4 one end ci which is pivotally connectedto a vertical valve rod H Jthe lower end of which vis pivotallyconnected to a second walking beam H5 fulcrumed at ||1 on a bracket lil.The free end of the walking beam |5 carries a cam follower in the formof a roller in apposition to a cam |32I, Figs. 5 and 17, mounted on androtatable with the camshaft 55. It will be seen that once per revolutionof camshaft 59 the valve stem |13 is momentarily depressed by cam |2|operating through the two walking beams H4 and H5 and the valve rod H5;andit will be apparent from the conguration of cam |2| that the intervalof actuation of the ejector ngers 98 corresponds to but a very smallpart of `a complete cycle. Compressed is-supplied to valve H2 through apipe |22, Fig. 1'?, which extends to a compressed air supply tank, notshown lin the drawings.

The adhesive applying mechanism The adhesive-applying mechanism 2li isdetailed principally in Figs. 8-12 inclusive and cornprises a rollerapplicator |25 carried by a pair of arms 125 and l2? which are ulcrumedat |28. A plate 25 bridged across said `arms affords an abutment for aspring i3d which is mounted on a stem iti and bears at its lower endagainst a shoulder formed on Ysaid stem. The upper end of the stem |3|extends through an aperture in plate 25 and is threaded to Vreceive aknurled retainer nut |32. The lower end of stem |3I is pivotallyconnected at |33 to an actuating arm |543 fulcrumed at |35 to a bracket|35. Said arm |3f-is provided with a hardened steel spheroidal tip |31which is seated in a circular opening |35 in a vertically reciprocableslide |35 mounted in a suitable guide |55. The slide |39 is disposedimmediately adjacent a lifter cam 52 mounted on and rotatable withcamshaft 53, and said cam hasl a radially projecting tooth |52a which iseiective during each revolution of camshaft 59 to `engage a shoulderi356; on slide LES-see Fig. `12u-and abruptly lift and then release theslide,

The result of this actionis to lift the arm |34,-

the movement of which is transmitted through stem 3L spring |31) andplate |29 to the armsy |25 and |21 carrying the roller |25. Said roller|25 normally yrests on the peripheral surface of a continuously rotatingdrum |43 mounted on an axle I 44 and partially immersed in a pool ofliquid adhesive M5 contained in a receptacle |46.

The abrupt upward movement of roller |25 causes it to effect momentarycontact with the strip of paper on mandrel 23 and the timing is soadjusted that the contact is made with the leading marginal surface ofthe strip, applying adhesive thereto.

Obviously, it would not be permissible to allow adhesive to come intocontact with the surface of the mandrel; but in the absence of thepreventative provision about to be described the adhesive applicator |25would make contact with the mandrel should there be any interruption ofthe now of paper strips while the machine remains in operation. Theprovision referred to comprises a latch bar |41 pivotally anchored at|48 and having a hook |52 at its upper end which isl i adapted to passthrough a slot |50 in a bridge member |52 interconnecting the two arms|26 and $21. When the latch bar H11 is postured as shown in full linesin Fig. 11 it is operative to prevent the arms |26 and |21 Vrisingsufficiently to enable roller |25 to make contact with the mandrel; butwhen, on the other hand, said latch bar is postured as shown in dot-dashoutline in the same `fig-ure, it interposes no obstruction to the upwardmovement of arms |26 and |21, as wil1 be apparent. When the latch bar isin its effective full-line position the actuating arm |35 is still freeto rise 'because of the compressibility of spring |30.

A piston rod |53 having one end pivotally connected at |511 to the latchbar |41 is attached at its other end to a piston |55 which isreciprocable in a cylinder |55 having a chamber '|51 which is connectedthrough a branch pipe |58 to the pipe 88, Fig. 20, communicating withVthe vacuum pump 89. Whenever the openings 64 in the mandrel 23 areobstructed by reason of a strip of paper on the mandrel a suicientlyreduced pressure obtains in chamber |51 so that the atmospheric pressurein chamber |59 will move piston |55 against the opposition of spring |65and thus shift the 'latch bar |41 to the posture in which it is shown indot-dash outline, wherein it is ineffective. But whenever the openings64 are not covered by a paper strip there is insuiiicient pressurereduction in chamber |51 to oiset spring |55 and, accordingly, the latchbar |41 remains in or `assumes its full-line posture, Fig. ll, whereinthe hook |43 is positioned to obstruct full upward movement of roller|25. Thus, it will be seen that the adhesive-applying roller |25 cannever make direct contact with the peripheral surface of mandrel 23.

The printing mechanism The printing mechanism 25 and the drive thereforeare most clearly illustrated in Figs. 3, 5, 14, 15, 17 and 18 to whichattention is now directed. A continuously rotating cylindrical typecarrier I 64 is provided with peripheral dovetail grooves extendinglengthwise thereof to receive strips of type |55 the faces of which arebrought into contact with each paper strip 35 as it is being ywound onthe mandrel 2 3. At the rear of type carrier |64 is located .an inkroller |66 positioned to contact the type faces during each revolutionof the type carrier. The type carrier |64 and ink roller |66 arerotatably mounted on shafts |61 and |68 respectively, the former ofwhich is journaled at one end in la slide |69 of inverted Tcross-section, Fig. 5, mounted for lengthwise reciprocation between twocomplementary guide strips mounted on a bed casting |12 which, in turn,is supported by channel members |13 constituting component parts of themachine frame. The stud shaft |68 supporting ink roller |66 is securedat one end to a secondary slide |14 which is ,attached to slide |69 bymeans of guide strips |15 which permit movement of slide |14 lengthwiseof slide |69, thus enabling ink roller |66 to be moved bodily toward andaway from type carrier |64. A feed screw |16 swivel-connected to slide|14 passes through an opening in an anchor block |11 attached to slide|69 and is provided with a knurled adjusting nut |18.`A compressionspring |80 encircling the feedscrew |16 bears at one end against anchorblock |11A and at its other end against slide |14. Manual rotation ofnut |18 is effective to move ink roller |66 toward and away from typecarrier l 64, thus providing for adjustment of the pressure with whichthe ink roller bears against the faces of `type strips |65.

It is necessary to reciprocate the slide |69 in a manner to cause thetype carrier |64 to move toward and away from mandrel 23 at appropriateuniform intervals; and it is further necessary to rot-ate the typecarrier in timed relation with the mandrel so that the type will contactthe paper strips on the mandrel at the correct instants. Consequently,there must be provided a drive means for rotating the type carrier |644which will permit of relative lateral movement between the type carrierand the mandrel and at the same time maintain a' constant rotationalrelationship therebetween so that the type will in each instanceregister with the specific surface areas of the paper band on which theprinted matter is intended to be impressed. The arrangement by which thetype carrier is rotated synchronously with the winding mandrel isillustrated most fully in Fig. 17 and comprises a chain belt |82 whichpasses around two idler sprockets |19 and |80 and engages sprocket 10onstub shafts 69- shaft |68, which latter is journaled in slide |69 andextends across the machine to an extent suicient to enable sprocket |8|to be placed in alignment with sprockets 10, |19 and |88. The outboardend of shaft |61, Figs. 3 and 5, is journaled in a bearing block |83supported by an arm |84, which bearing block is cast integrally with aslide member |85 designed to slidably engage a guide strip |86 securedto the under side of a hori- Zontal plate |-81 constituting a, componentpart of the machine framework. The arm |84 is affixed at one end to theslide |69 and moves bodily therewith, the outboard end being slidablysupported by the guide strip |86. The idler sprocket |19 is rotatablymounted on a bracket |88 attached to the machine frame; and the sprocket|80 is rotatably supported .on a stud shaft |90 projecting from andcarried by a block |9| which is slidably mounted in an inclined guideway|92 and attached to a stud |93 which passes through an aperture in ananchor plate |94 carried by a bracket |95 and is threaded at y its outerend to receive a knurled kadjusting nut |96 between which and the anchorplate |94 there is interposed a compression spring |98. The chain belt|82 is driven by sprocket 10, the posi- 10 tion of which is xed, asisthat of idler sprocket |19. But sprocket |8| moves with slide |69 and atthe same time sprocket |80 moves together with its supporting stud shaft|90 and carrier block |9| lengthwise of the guideway |92. It will beapparent that as slide |69 recedes from the winding mandrel 23, sprocket|80 is pulled downwardly along the guideway |92 against the oppositionof spring |98, and that said sprocket |80 is urged upwardly by saidspring as slide |69 moves toward the mandrel. Although the speed ofrotation of type carrier |64 is caused to deviate from constancy as aresult of the reciprocatory movement of slide |69, this does not giverise to any variation in the angular relationship between the typecarrier and mandrel as respects the recurrent instances when the typemakes contact -with the successive paper strips on the mandrel and,consequently, registration of the type faces with the areas on the paperstrips intended to receive the impressions is not adversely affected.

'l'he slide |69 and all parts carried thereby are biased toward themandrel 23 by a compression spring |99 which is interposed between therear end of the slide and an angle iron abutment 200 secured to theframe of the machine. Retraction of slide |69 is effected by a cam 20|carried by and rotatable with camshaft 59, adjacent which cam is arotary cam follower 202 attached to one end of a cam follower rod 203which is reciprocable lengthwise in a tubular guide 204 secured to theframe of the machine. The left hand end of rod 203 bears against aroller 206 carried by and connected to the lower end of a rocker member208 which is fulcrumed at 209 on an arm 2|0 depending from and movablewith slide |69. The upper end of rocker member 208 is pivoted at 2|2 toa clevis 2|8 to which is affixed a rod 2 I4 which extends through anopening in a plate 2|5 and is threaded to receive a knurled nut 2|'6.The plate 2|5 is secured to the rear end of slide |69 and movabletherewith. The rocker member 208 serves to transmit to the slide |69 themovement in one direction of rod 203 in response to cam 20|, the returnof said rod, together with the slide, being effected by spring |99. Asshown in Fig. 14, the slide V|69 is in its forward-most'position whereinthe face of one of the type stripsV |65 is in contact with a paper band35 on the mandrel 23. It is necessary to be able to adjust the contactpressure between the type and the paper strips to offset slightvariations which may occur from time to time, and such adjustments areeffected by means of the knurled nut 2|6. It will be seen that the cam20| functions as a stop to limit the forward travel of slide |69, and itwill be apparent that by rotating nut 2 I6 in one direction or the otherthe relative position of the slide can be altered independently of thecam. The length of travel of the slide is unchanged but its limitingpositions are altered. The same result might be accomplished byadjustably moving the type carrier relatively to the slide, but to do sowould involve moving both ends of shaft |61 in order to maintainalignment and that would not be nearly as convenient as the arrangementdescribed. It also is necessary to make a similar adjustment wheneverthere may be substituted a mandrel 23 of different diameter.

It will be observed that all the ve cams heretofore identied are mountedon and rotatable with the common camshaft 59, which is journaled in fourpillow blocks 2 I1 secured to the frame of the machine.

- the speed reducer 2,2! through gears 228 and 229. The latter gear ismounted on and rotatable with the speed-reducer take-olf shaft 230 onwhich is also mounted a sprocket 232 which is connected with a sprocket233 on camshaft 59 through a chain belt 234.

V The drum VU33 is continuously rotated by a chain belt 235, Fig. 1,which runs over an idler sprocket 236 and a driving sprocket 231 mountedon camshaft 59 and rotatable therewithsee Fig. 4. n 4 Y Itis found thatsetting of the adhesive coating on the paper bands can be hastened byblowing hot air onto the adhesive-coated surface just before the twoends are overlapped; and to that end there may be provided a hot airsupply pipe 238, Fig. 2, to which is connected a suitable blast nozzle239. The pipe 238 may be supported by a block 2de attached to the guideelement 36 and is preferably connected to the hot air supply linethrough a flexible hose, not shown.

While I have illustrated and described only one embodiment of myinvention, it will be manifest that numerous modifications andalternatives are included within the scope and purview thereof andaccordingly, I do not wish to be limited otherwise than as clearlyindicated by the terms of the appended claims;

What is claimed is:

1. The combination in a band vforming machine, of a rotary spindle, amandrel carried by said spindle and rotatable therewith, said mandrelhaving a peripheral opening communicating with a vacuum pump by way of apassageway through said spindle, a pressure roller adjacent said mandreland movable bodily toward and away from said mandrel, said pressureroller and mandrel being operative conjointly to grip a strip of paper,the arrangement being such that a strip i of paper fed to said mandrelis adhered thereto 'at its leading edge portion by external atmosphericpressure-resulting from a partial vacuum within said passageway, theadherence of the paper to the mandrel being suicient to cause the paperstrip to be wound around the mandrel, an adhesive applicator operativeto apply a coating of adhesive to the external leading marginal surfaceof the paper strip during passage of same around the mandrel, meansoperative in timed relation with the rotation of the mandrel to movesaid pressure roller into Contact with the paper strip on the mandreland to maintain said contact while the paper strip is being wound on themandrel, said pressure roller being operative in conjunction with saidmandrel to press together the two ends of the paper strip whereby toeffect firm adherence therebetween, said lastmentioned means beingfurther operative to withdraw said roller from contact with the paperstrip following completion of the band, one or more ejector elementsmovable axiswise of said mandrel and operative when moved in onedirection to engage one end of the paper band and eject the same fromthe mandrel, means operative in timed relation with said mandrel toactuate said ejector element following completion of each band, andfurther operative to retract said ejector element following eachactuation Ythereof in the direction to eject a band, a mechanicalnandrei 12 c feeder synchronized with said mandrel and operative to feedstrips o`f paper to said mandrel one at a time at the rate of one stripfor every two revolutions of the mandrel, a continuous conveyorinterposed between said feeder and said mandrel for transferring thestrips of paper from the feeder to the mandrel, a gateI normallyobstructing the discharge end of said conveyor for delaying delivery ofpaper strips to said mandrel, and mechanism operative in timed relationwith said mandrel for opening said gate at predetermined intervals sospaced apart and so interrelated with the movements of saidyejectorelements and said mandrel that each strip of paper is released to saidmandrel after the mandrel has been cleared of a previously finished bandand concurrently with the arrival of said peripheral opening at aposition to effect registration with the leading edge portion of thestrip.

2. The combination according to claim i, comprising adhesive-applicatormeans including an applicator element, means supporting said element formovement toward and away from said mandrel, a cam operative in timedrelation with said mandrel for urging said element into momentarycontact with the external leading marginal surface o-f a paper strip onsaid mandrel while said mandrel and the paper strip thereon continue torotate, yieldable means inter-coupling said cam with said elementsupporting means and effective to enable said adhesive applicator meansto be restrained against movement into contact with said mandrel, latchmeans operative in one position to obstruct said adhesiveapplicatormeans against movement into contact with said mandrel, andvacuum-actuated means operative to move said latch means to anineffective position in response to a predetermined degree of appliedvacuum, said Yvacuum-actuated means being connected to the sainevacuum-producing source as said peripheral opening, the arrangementbeing such that said latch means is moved to its ineffective position bysaid vacuumactuated means when and only when said peripheral opening isobstructed', as by a paper strip embracing said mandrel. Y

3. The combination in a band-forming machine, of a camshaft, a motor forContinuously rotating said camshaft, a spindle driven from said camshaftat twice the angular speed thereof, a feeder mechanism operative to feedpre-cut paper strips to said conveyor one at a time at the rate of onestrip for Ievery two revolutions of said spindle, a mandrel carried byand rotatable with said spindle, said mandrel having a row of peripheralopenings extending axiswise thereof, said openings being 'connectedthrough said spindle to a source of vacuum, a valve for controllingapplication'of vacuum to said openings, al belt conveyor fortransferring paper strips from said feeder mechanism to said mandrel`and having' its discharge end situated adjacent said mandrel, mechanismfor and lowering the discharge end of lsaid conveyor, a stationary gatepositioned to obstruct the discharge end of said conveyor when lsaiddischarge end is in elevated position, said discharge end beingunobstructed when in its lowereddposition, a cam rotatable with saidcamshaft and operative to actuate said mechanism invtimed relation withsaid mandrel, the arrangementbeing such that said row of openingseifects lregistrationwith the leading marginalsurface of eachwpaperstrip as the paper Sirieis .released from Seidl, @leyeron ,and a Secondcam rotatable with said camshaft and opera- 13 tive to control saidvalve in timed relation with said mandrel whereby to cut off the vacuumto said openings upon completion of each band and to restore the Vacuumthereto prior to the commencement of a successive band-formingoperation.

4. A band-forming machine in accordance with claim 3 including apressure roller mounted adjacent said mandrel and operable by saidmechanism to effect intermittent osculatory contact with a strip ofpaper on said mandrel in timed relation with the rotation of themandrel, means operative to apply adhesive `to the leading marginalsurface of each paper strip as the strip is being wound around themandrel, and a cam vrotatable with said camshaft and operative toactuate said adhesive-applying means in timed relation with saidmandrel.

5. A band-forming machine in accordance with claim 3 including mechanismfor printing upon the paper strip while it is being wound on themandrel, said printing mechanism compris- 14 ing a reciprocable slide, acam rotatable with said camshaft for reciprocating said slide toward andaway from said mandrel, and a rotary type carrier movable with saidslide toward and away from said mandrel.

' STANLEY E. TRIBBEY.

REFERENCES CTED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS

